Line-space folio attachment for type-writers.



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APPLICATION FILED MAR. 9. 1916.

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'jf f hmmm l im y TUHH J. HAGIERTY ANDERNEST JD. VAN WIE, OF ALBANY, NEW YORK.

iliNE-SPACJE FOLIO ATTACHMENT FOR TYPE-WRITERS.

Specification of Letters Patent.

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Application filed March 9, 1916. SeriaI No. 83,032.

To all whom t may concern:

Be it known that we, JOHN J. Hnecnnfrr and ERNESLD. VAN Win, citizens of the United States, whose residence is Albany, county of Albany, and State of New York, have invented certain new and useful Improvements 4in Line-Space Folio. Attachments for Type-Writers; and they do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

rllhis invention relates to a line space indicator for typewriters, and has for its object to provide a device of this character which will indicate when a predetermined number of lines has been completed sinceI -the previous operation of the indicator.

In various classes of typewriter work it is desirable to place along the margin of the sheet, numbers to indicate the line which would com lete a folio of the typewritten matter. ypewritten matter usually runs ten lineslto the folio, and in order for the operator to put the line numbers opposite every tenth line he must keep account of the lines as they are written in order to shift the carriage to bring the space in the margin opposite the printing point before the commencement of the tenth line.

By our invention we rovide an indicator which operates to soun a signal when the carriage is returned after the desired number of lines have been written so that the operator may Write the line number at the beginning of the neXt line without having te keep in mind the number of lines written.

A further object `of the invention is to provide an attachment of this character in which the signal is operated at the beginning of the shifting movement of the carringe so that the operator may press the marginal release key before the movement of the carriage is completed to allow the eX- tended movement for printing the line number.

A further object of the invention is to provide a device of the class described which may be applied to existing typewriters without change in the typewriter design, by the mere substitution of a single part on which the attachment is assembled.

A further object of the invention is to rovide a device of the class described w ich adapted to all standard makes of typewriters.

A further object of [the invention is to provide an attachment of the class described which will operate to sound the signal after a predetermined number of lines have been written, regardless of whether the typewriter be set for the usual double space or for the single spaceor for triple space.

A further object of the invention is to provide an attachment for the purpose described which may be readilyy altered to change the number of lines between the successive operations of the signal.

With the above objects in view, our invention consists in the construction shown in the accompanying drawings and hereinafter described, in whicl1"drawings w'e have shown our attachment as applied to an Underwood typewriter known as the Underwood No. 5.

In the said drawings:

Figure 1 shows a side elevation of a portion of the carriage of the aforementioned Underwood typewriter with our attachment in place thereon;

Fig. 2 is a side elevation with the attachment removed from ing the line space plate;

Fig. 3 is a plan View of the attachment shown in Fign 2;

Figs. 4 and 5 are sectional views on the correspondingly numbered lines of Fig. 2; and i Figs. 6 and 7 are the apparatus.

Referring to the drawings, and particularly to Fig. 1, 1 indicates the sliding carriage of a typewriter which carries the platen roller and the mechanism for intermittently rotating the platen to bring the paper into position for the successive lines. In themachine of the type described and in most other standard machines, the rotation of the platen the machine, but showplunger and the cover detail views of parts of is e'ected by means of a lever shown at 2,-

mining the portion of the stroke of the plunger which is eective in turning the platen.

Our attachment is designed to be operated at the beginning of the `return movement of the carriage by the movement of this plunger and we have designed the attachment so as to be supported on the cover plate 6 which covers the end of the carriage in the manner shown in Fig. 1. Our attachment comprises a bell or gong 7 which is supported at the lower rear edge of the cover plate 6 on a stud 8 -proj ectingvfrom the cover plate. Attached to the stud 8 within the gong is the l lstriker 10 comprising the ball 9 on a spring wire arm bent to maintain the ball just out of engagement with Ithe inner edge of the gong. The stud 8 is formed with `a reduced portion adjacent the face of the cover plate 6 to providea bearingv for a ratchet wheel 12 here shown as provided with'ten teeth. The

' ratchet wheel is designed to be actuated by the reciprocation of the plunger 4: so that on each reciprocation of the plunger it will be advanced the distance of one tooth to therel by complete a single revolution on ten movements of the plunger. The ratchet wheel 1s operated by a pawl 13 pivot'ed to the end of lthe bar 14 mounted for sliding movement in a guide slot 15 cut in the side face of the cover plate at a point adjacent the end ofthe plungerll which extends beyond the pawl for turning the platen in order to provide las - 18 is designed to slide' in t an i attachment vfor the return spring 16. The end of the plunger 4 is provided with a pin to which the'spring 16 .is directly attached in the machine before our attachment is applied. j

To this pin, indicated at 17,'isattached a collar 18 having la circumferential groove for receiving the end'of the spring which previously fitted over v,the in. The collar e groove of the cover plate as showin, and to its outer end is rigidly attached the bar 14 by means of a screw 19 and lug 21 which engages a slot in the end face of tle collar.

For operating'the ,striker of the gong the ratchet 12 is provided with a in 20 set in the outer face of one of its teet in position to engage the striker to force itback against the tension of the spring so that when released the. striker will hit the edge of the gong.l The position of the striker relative to the movement of the ratchet is so determined that the pin will engage and release the striker during a single movement of .the

' ratchet wheel.

For preventing the back movement of the ratchet 12 upon the return of the pawl we may provide a small ratchet 22 on the face of the larger ratchet, which ratchet is engaged by a springpawl 23 to prevent the reverse rotation of the'larger ratchet.

In operating a machine provided with our attachment the paper is placed in the machine and the platen turned by operating the handle 2 until the gong strikes. If the paper is not suliciently advanced in the machine to begin the writing, the platen is further advancedby means of the knobs at the ends of the platen so that the ratchet 12 will be left inposi-tion with the pin 20 immediately in advance of the striker. When the 4desired point on the page is reached for beginning the article, the writing is commenced, the rotation of the platen for the successive lines being thereafter eected by the lever in the usual manner. For each operation of the lever 2 the ratchet will be advanced adistance of one tooth, and after ten lines have been written the pin 20 will at the beginning ofthe next return movement-of the carriage again operate the striker indicating to the operator as he begins to shift the carriage that a folio or line number is to be written before the matter forming' a new line is commenced. He may then, with his other hand, press the marginal release key to eiect movement of the laten beyond the stop set todetermine the eginning of the line so that the continued movement of the carriage will bring the paper in position for the folio number.

lf it is desired to number the lines at different intervals than every ten lines, the ratchet may be provided with a greater or less number ofteeth, the ratchet or awl being shifted so that the effective stro e of the pawl shall be suicient always to advance theV ratchet through the space of one tooth. l

In applying our attachment to machines already in use we may provide a cover plate with the holes and slot for supporting the parts of theI attachment that the attachment may e applied to the machine by merely removing the old cover e plate and putting on the new plate and connecting the collar 18 to the pin 17 in the manner described. To effect the connection of the attachment to the machine in this manner requires merely a screwdriver and no special Imechanical skill so'that the attachment may be applied by the typist without assistance and in a few moments time.

' In providing attachments for machines of makes other than that illustrated the support -for theparts will have to be modified in various ways to correspond with the design of the particular machine carriage to rovided in 1t so 115 nacaree rear of the machine out of the way of the' hands of the operator and adds but little to the Weight of the machine, and nothing to the bulk, as it does not project beyond the other projecting portions of the carriage. reclaimzl. An attachment -for typewriters having a reciprocating member for edecting th'erotation ofthe platen and the return ofl the carriage after each line ofwriting, said attachment comprising a signal, a ratchet for periodically operating said signal upon conl/tinued rotation of the ratchet in one direction, a pawl for'actuating the ratchet wheel, said pawl being connected to 'said reciprocating member to advance the .ratchet Wheel a predetermined lamount upon each reciprocation of said member. f

2. An attachment for connection to the carriages of typewriters comprising a bell, a ratchet wheel, means 'operated by the ratchet wheel for sounding the bell successively at. uniform intervals upon the con'- tinued rotation of the ratchet in one direction, and means for operating the ratchet' wheel comprising a pawl for connection to the line space plunger of' the typewriting machine and arranged to operate the ratchetl through the space of one tooth upon each reciprocation of the plunger.

3. An attachment for typewriters comprising a base portion adapted to be attached to the carriage of thetypewriter, a. signal mounted on said base, means for sounding said signal at equal 'intervals upon comp1e-v tion otra. predetermined number of lines of writing ber 'for operating said signal upon each movement of a predetermined extent, a membermounted for reciprocation on said base and adapted to operate said hrst mentioned comprising a signal operating memmember upon each-such reciprocation, and

means tor connecting said member to the linespace plunger ozt the typewriting machine to be' operated thereby when the base portion is attachcdto the carriage of lthe machine.

d. ln an attachment for typewriting vmachines,

the combination of a base portion -.rigid1y attached to the carriage of said ma- -ch1ne, a gong carried by said base, a striker gong, a ratchet mounted on said .v lbase for rotation in one direction onlyhavfor said ing means vfor operating said striker once in each revolution, a pawl for operating said ratchet, 'a reciprocating member mounted on said base and operating said pawl, said reciprocating member having means for at-l tachment to the line space plunger of a typewriting machine when the said base portion is attached to said machine.

ln testimony tures.` y JUHN d.. HAGGERTY. ERNEST D. VAN WIE.

whereof we ax our signa- 

